From: Konrad Dybcio <quic_kdybcio@quicinc.com>

RB3Gen2 has three tiny buttons located under the blue USB-A ports.
They're all connected through the various PMICs and are used for
volume and power.

Describe them.

Signed-off-by: Konrad Dybcio <quic_kdybcio@quicinc.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@oss.qualcomm.com>
---
 arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts | 35 ++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
index 0d45662b8028..1d27f7ba8b5c 100644
--- a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
+++ b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
@@ -9,6 +9,7 @@
 #define PM7250B_SID 8
 #define PM7250B_SID1 9
 
+#include <dt-bindings/pinctrl/qcom,pmic-gpio.h>
 #include <dt-bindings/regulator/qcom,rpmh-regulator.h>
 #include "sc7280.dtsi"
 #include "pm7250b.dtsi"
@@ -153,6 +154,20 @@ debug_vm_mem: debug-vm@d0600000 {
 		};
 	};
 
+	gpio-keys {
+		compatible = "gpio-keys";
+
+		pinctrl-0 = <&kypd_vol_up_n>;
+		pinctrl-names = "default";
+
+		key-volume-up {
+			label = "Volume Up";
+			gpios = <&pm7325_gpios 6 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_VOLUMEUP>;
+			linux,can-disable;
+		};
+	};
+
 	pmic-glink {
 		compatible = "qcom,qcm6490-pmic-glink", "qcom,pmic-glink";
 
@@ -684,10 +699,30 @@ &mdss_edp_phy {
 	status = "okay";
 };
 
+&pm7325_gpios {
+	kypd_vol_up_n: kypd-vol-up-n-state {
+		pins = "gpio6";
+		function = PMIC_GPIO_FUNC_NORMAL;
+		power-source = <1>;
+		bias-pull-up;
+		input-enable;
+	};
+};
+
 &pmk8350_rtc {
 	status = "okay";
 };
 
+&pon_pwrkey {
+	status = "okay";
+};
+
+&pon_resin {
+	linux,code = <KEY_VOLUMEDOWN>;
+
+	status = "okay";
+};
+
 &qupv3_id_0 {
 	status = "okay";
 };

---
base-commit: 58ca61c1a866bfdaa5e19fb19a2416764f847d75
change-id: 20241004-rb3gen2-pwr-vol-keys-a166cd575190

Best regards,
-- 
Bjorn Andersson <bjorn.andersson@oss.qualcomm.com>

On Fri, Oct 04, 2024 at 07:47:17PM GMT, Bjorn Andersson wrote:
> From: Konrad Dybcio <quic_kdybcio@quicinc.com>
> 
> RB3Gen2 has three tiny buttons located under the blue USB-A ports.
> They're all connected through the various PMICs and are used for
> volume and power.
> 
> Describe them.
> 
> Signed-off-by: Konrad Dybcio <quic_kdybcio@quicinc.com>
> Signed-off-by: Bjorn Andersson <bjorn.andersson@oss.qualcomm.com>
> ---
>  arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts | 35 ++++++++++++++++++++++++++++
>  1 file changed, 35 insertions(+)
> 

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

-- 
With best wishes
Dmitry